SCSS

by Manju06

HTML

<table>
    <thead>
        <tr>
            <th>sticky header <button>tooltip</button></th>
            <th>sticky header</th>
            <th>sticky header</th>
        </tr>
    </thead>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
</table>

CSS

table {
    border-collapse: collapse;
    width: 100%;
    position: relative;
}

td, th {
    height: 200px;
    border: 1px solid black;
}

th {
    position: sticky;
    top: 0;
    background: #eee;
}

button:hover::after {
    content: "some tooltip content";
    position: absolute;
    display:block;
    bottom: 55%;
    left: 250px;
    background-color: yellow;
    padding: 10px 8px;
    min-width: 240px;
}